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Radio remote unit, power-off alarm method and base station

A radio frequency remote unit and alarm information technology, applied in the field of communication, can solve the problems of low success rate of alarm information, high hardware performance requirements, and short power retention time.

Active Publication Date: 2016-04-20
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the former has a lower success rate of sending alarm information due to the shorter power supply holding time, and has higher requirements on hardware performance. Although the latter can ensure the successful sending of power failure alarm information, the backup power supply device has a large volume, high cost

Method used

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  • Radio remote unit, power-off alarm method and base station
  • Radio remote unit, power-off alarm method and base station
  • Radio remote unit, power-off alarm method and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] figure 1 The system architecture diagram of the distributed base station provided by the embodiment of the present invention, such as figure 1 As shown, the system architecture diagram includes a baseband processing unit 101 (English: BaseBandUni, t: BBU for short), multiple cascaded radio remote units 102 (English: RadioRemoteUnit, short: RRU), and an antenna 103 . Among them, one BBU can be connected to one or more RRUs. When a BBU is connected to multiple RRUs, cascading multiple RRUs to the BBU can save fiber resources. The number of fiber cores required after cascading is 1 / N of.

[0045] Distributed base station refers to separating the BBU and RRU of the base station, and placing the BBU in the equipment room, placing the RRU in the remote position close to the antenna, connecting the BBU and RRU through optical fibers in the middle, and connecting the RRU and the antenna through the same Shaft cables and power splitters or couplers are connected. Among them, ...

Embodiment 2

[0048] figure 2 A remote radio unit RRU provided for an embodiment of the present invention, such as figure 2 As shown, the remote radio unit includes: a processor module 1 and a charging and discharging module 2, wherein the charging and discharging module includes at least one capacitor 21;

[0049] The input terminal of the charging and discharging module 2 is used to connect with the external power supply 3, and when the external power supply 3 is working normally, the charging and discharging module 2 is in the power storage state;

[0050] The output end of the charging and discharging module 2 is connected to the processor module 1, and is used to supply power to the processor module 1 when the external power supply is cut off;

[0051] The processor module 1 is configured to acquire preset alarm information and report the preset alarm information to the baseband processing unit 4 when detecting that the external power supply 3 is powered off.

[0052] Specifically,...

Embodiment 3

[0067] Figure 4 It is a flow chart of a power failure alarm method provided by an embodiment of the present invention, and the method is applied to the above-mentioned figure 2 and image 3 The radio remote unit, such as Figure 4 As shown, the method includes the following steps.

[0068] Step 201: When the external power supply works normally, the charging and discharging module is in a power storage state.

[0069] When the external power supply is working normally, the external power supply is connected to the input terminal of the charging and discharging module, which can charge the charging and discharging module, so that the charging and discharging module is in the power storage state, and at the same time, the external power supply is connected to the processor module, which can be used for the processing of the RRU power supply module.

[0070] Further, the charging and discharging module also includes a plurality of diodes and a plurality of resistors, wherei...

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PUM

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Abstract

The embodiments of the invention provides a radio remote unit, a power-off alarm method and a base station and relates to the technical field of communications, which is used for improving the sending success rate of the alarm information and reduces the cost at the same time. The radio remote unit comprises a processor module and a charging / discharging module. The charging / discharging module comprises at least one capacitor; an input end of the charging and discharging module, and an output end of the charging and discharging module. The input end of the charging and discharging module is used for being connected with an external power supply. When the external power supply runs normally, the charging / discharging module is in the energy storage state. The output end of the charging / discharging module is connected with the processor module and is used for powering up the processor module when the external power supply is in the blackout state. The processor module is used for acquiring the preset alarm information upon detecting the blackout state of the external power supply, and reporting the preset alarm information to a baseband processing unit.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a remote radio unit, a power failure alarm method and a base station. Background technique [0002] With the rapid development of communication technology, various communication networks such as 2G / 3G / 4G have emerged. Most of these communication networks use distributed base stations to send and receive signals. Distributed base stations refer to the baseband processing units of base stations (English: The BaseBandUnit, referred to as: BBU) and the remote radio unit (English: RadioRemoteUnit, referred to as: RRU) are separated, and the middle is connected through an optical fiber. One BBU can be connected to one or more RRUs. When one BBU is connected to multiple RRUs, usually the multiple RRUs are cascaded and connected to the BBU to save fiber resources. [0003] During the operation of the distributed base station, there may be failures such as power failure of the RRU...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/34H02J9/06H02J7/00
CPCH02J7/0068H02J7/345H02J9/061
Inventor 孙乐王友祥李福昌范斌
Owner CHINA UNITED NETWORK COMM GRP CO LTD